#include<stdio.h>
int fun(num){
    int  num1,num2;
    scanf("%d %d",&num1,&num2);
    if(num1<0 || num2<0){
        printf("Invalid Input");
        return 0;
    }
    int main(){
    fun(num){
    num1 = (num1+num2) - (num2=num1);
    printf("%d \n%d",num1,num2);
    return 0;
        }
}